During their chat for Variety‘s Actors on Actors, Emily Blunt (“Mary Poppins Returns”) and Hugh Jackman (“The Front Runner,” “The Greatest Showman”) talked about what makes a great movie musical.

“I think it’s a very difficult balance between a story and a narrative that’s moving and profound that people can get on board with,” Blunt said. “You do want the idea of a spectacle so that people can be pulled into a world that they want to breathe the same air as.”

“Look at the story of ‘Grease’ and the songs,” Jackman added. “That’s a hard thing to pull off.”